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Three Casts, One Reveal: HBO's Riddle

  • Sep 9, 2026
  • 18 min

Show notes

What the episode covers

HBO just confirmed three Harry Potter casting picks in a single announcement, and one of them means Billy Barratt is now the first actor ever cast as any version of Voldemort for this HBO Harry Potter series, playing a teenage Tom Riddle years before Christian Coulson or Hero Fiennes Tiffin took the role on screen. Becca and David also break down Bonnie Hill as the new Ginny Weasley, weighing her against Bonnie Wright's Philosopher's Stone-era performance, and dig into why the Ginny search dragged on for months, tracing it back to a cast exit and Season 2's production timeline. They also cover Lenny Rush stepping into Dobby, debating whether HBO will go practical or lean on CGI like the original films did.

Stick around for the back half, where the hosts speculate on the still-uncast adult Voldemort, including an unconfirmed Eva Green-as-Bellatrix rumor, and land on a genuine disagreement about whether that casting news will be loud or slip out quietly.

Timeline

In this episode

7 moments worth skipping to. The timecodes match the player above.

  1. 0:15Introduction
  2. 1:15The Ginny Casting Finale
  3. 4:36Why the Search Took This Long
  4. 7:39Dobby's New Face: Lenny Rush
  5. 10:30Barratt's Riddle: The First Voldemort in This Show
  6. 13:49What This Means for the Dark Lord Nobody's Cast Yet
  7. 17:09Outro

Quick answers

Straight from the episode

The questions this one settles, without the listen.

Who has been cast as Ginny Weasley in HBO's Harry Potter series?
Bonnie Hill has been cast as Ginny Weasley. The episode compares her against Bonnie Wright using the flying-car scene and the largely wordless chamber rescue scene, arguing Hill fits the shy, mortified early version of Ginny before her growth arc.
Why did the search for HBO's Ginny Weasley take so long?
The delay is tied to a family statement regarding Cochrane's exit, the timing of the Season 2 order, and an unspoken production cost from lost reshoot footage. Coincidentally, both the outgoing and incoming actors share the first name Bonnie.
Who is playing Dobby in the HBO series, and will it be CGI like the movies?
Lenny Rush has been cast as Dobby. Unlike Toby Jones's fully CGI, adult-voiced version, HBO has not confirmed whether Rush's Dobby will be practical, CGI, or some hybrid format.
Who is playing young Tom Riddle in HBO's Harry Potter?
Billy Barratt has been cast as young Tom Riddle. He's in his high teens, compared to Christian Coulson who was 23 at casting, and joins a lineage that includes Coulson, Hero Fiennes Tiffin, and Frank Dillane as prior on-screen Riddles. Barratt is notably the first actor ever cast as any version of Voldemort in this adaptation, backed by his Responsible Child Emmy win and recent Nathan Prescott casting.
Has an adult Voldemort actor been cast yet for the HBO series?
No, the adult Dark Lord remains uncast. The episode notes an unconfirmed rumor about Eva Green as Bellatrix and mentions a fan account that predicted casting news but got the names wrong, alongside speculation the villain could debut in a teaser without a name attached.

Transcript

The full conversation

Every word of the episode, 3,068 of them, in the order they were said.

Read the transcriptHide the transcript

DavidOkay, so get this. I'm refreshing my inbox this morning, and HBO just detonates three casting announcements at once.

Becca HartwellWait, three in one day?

DavidThree. One press release.

Becca HartwellUgh. Okay, hold on. I need context. This is The Sorting Room. I'm Becca, that's David, and normally you drip these out to torture us for weeks.

DavidI know. It's like they got tired of watching us suffer.

Becca HartwellBecause one of these names-- David, tell me it's the one I think it is.

DavidWait for it.

Becca HartwellDavid.

DavidFine, yes. The Ginny search is over. Months of us guessing, done.

Becca HartwellFinally. That storyline gets to close today.

DavidAnd there's a second name in there that's a total charmer, plus a third pick that's honestly the biggest swing of the day.

Becca HartwellOoh, don't you dare spoil that third one yet.

DavidWouldn't dream of it, but trust me, it changes how we think about this whole series.

Becca HartwellAll right, so where do we even start?

DavidWhere else? The Ginny Weasley, the recast heard around the fandom. Bonnie Hill, that's the name. Ginny Weasley officially after Gracie Cochrane exited the role back in spring.

Becca HartwellWhich means we can finally close the file we've been keeping open since May.

DavidWe've basically been running a stakeout on this casting.

Becca HartwellVariety broke it first. Lenny Rush as Dobby, Billy Barratt as young Tom Riddle, and Hill slotting into Ginny for Chamber of Secrets Season 2.

DavidThree names in one release, and somehow everybody only wanted to talk about one of them.

Becca HartwellGinny.

DavidGinny.

Becca HartwellFair, honestly. Bonnie Wright's Ginny was quiet, sidelined early on, and then by the last films, she's throwing hexes right next to everybody else.

DavidThe arc mattered. Book Ginny in Chamber of Secrets is barely speaking. She's twelve. She's scared. She's writing in a diary that's slowly killing her.

Becca HartwellSo the casting call was never about charisma first. It was about who can play scared and small before anything else.

DavidAnd then grow into the version everyone remembers from the movies.

Becca HartwellDoes Hill read that way to you off what's out there? I think so. We've said before we wanted someone who doesn't play the whole arc on day one, and she isn't.

DavidNo overacting the confidence.

Becca HartwellRight. She looks twelve. She acts twelve.

DavidHigh praise coming from you.

Becca HartwellIt genuinely is.

DavidOkay, but I wanna push on this a little more because "looks twelve, acts twelve" is a vibe, not a scene.

Becca HartwellFair. Give me an actual moment you're picturing.

DavidThe flying car arrival at the Burrow. Book Ginny barely says a word to Harry that whole chapter. She's mortified. She can't even look at him.

Becca HartwellRight. And that's such an easy beat to get wrong. Cast the wrong kid, and she's either playing it too big, mugging for the camera, or she's so flat it just reads as boring instead of embarrassed.

DavidExactly. That scene lives or dies on restraint.

Becca HartwellAnd restraint is a hard thing to judge from a casting announcement and a couple of stills. We're grading a performance we haven't seen yet.

DavidSure, but that's kinda the fun of this job. We take the swing anyway.

Becca HartwellWe do. And based on what little we've got, I still think Hill is the right type for that scene specifically.

DavidThe shy, mortified version.

Becca HartwellRight. Wright eventually got to be confident, funny, holding her own with the twins, but that's a Season 2, Season 3 Ginny. Day one has to be the kid who can't speak in front of Harry Potter.

DavidSo if Hill nails the mortified version first, the growth arc takes care of itself later.

Becca HartwellThat's the bet, yeah.

DavidThere's a second scene I keep coming back to too, the Chamber rescue near the end where Ginny's basically unconscious the whole time. That's a totally different acting challenge. All reaction, no lines.

Becca HartwellRight. That one's almost the opposite test. Can she sell being drained and terrified without saying a word?

DavidPhysical acting only.

Becca HartwellExactly. And we won't know that until we actually see footage.

DavidCochrane's exit is still the part nobody's really explained.

Becca HartwellNo.

DavidAnd I doubt tonight's the night we get the full story either.

Becca HartwellProbably not.

DavidBut that gap is a huge part of why this search stretched on as long as it did.

Becca HartwellMonths of it, not days.

DavidThere's an actual reason for that timeline, and it's bigger than one casting director changing their mind.

Becca HartwellIt is, and it explains a lot about why fans got so loud waiting for an answer.

DavidSo here's the real answer nobody wanted to just say out loud back in May.

Becca HartwellGracie Cochrane's family put out a statement: unforeseen circumstances.

DavidThat's it? That's the whole explanation?

Becca HartwellThat's the whole explanation. Deadline broke it back in May, and HBO's response was basically supportive silence. Wished her well, didn't elaborate.

DavidWow. No details, no drama, just a door quietly closing.

Becca HartwellRight. And here's the timing that makes it sting a little. That recasting news landed shortly after Season 2 got its official order.

DavidOh, that's rough. You get the green light and then immediately lose a lead.

Becca HartwellExactly. Bad week, good week, same week.

DavidVery on brand for this production, honestly.

Becca HartwellRight. Nothing about this show has been simple.

DavidSo that's the months of limbo. Cochrane's out in May. We don't get her replacement until September.

Becca HartwellFour months of us checking casting sites for no reason.

DavidSpeak for yourself. I checked daily.

Becca HartwellFour months sounds like not much until you think about what else was happening on set during that window. Table reads, chemistry sessions, wardrobe fittings. All of that presumably had a Ginny-shaped hole in it.

DavidRight. It's not like they can just pencil in a placeholder for a lead role and keep rolling.

Becca HartwellAnd you could feel the fan community getting restless about it too. Every casting site update, every set photo without a Ginny in frame, people were reading tea leaves.

DavidWe were basically reporting on the absence of news for a full season of episodes.

Becca HartwellWhich is its own kind of content, honestly, but it's not the same as an actual answer.

DavidNo, and I think that's part of why today's announcement landed so hard. It wasn't just closing a casting gap, it was closing a whole waiting period the fandom had been sitting in.

Becca HartwellOkay, but there's a genuinely cute footnote to all this.

DavidGo on.

Becca HartwellThe fans clocked it the second the announcement dropped. The old Ginny and the new Ginny share a first name.

DavidWait, both named Bonnie?

Becca HartwellBoth Bonnie. Bonnie Wright, Bonnie Hill.

DavidNo way. I didn't even clock that.

Becca HartwellThat's the kind of coincidence that makes the Internet lose its mind for, like, six hours.

DavidIt did exactly that. Did anyone float a conspiracy theory, like HBO did it on purpose?

Becca HartwellPeople wanted to believe that, sure, but it just reads like a coincidence, a nice one.

DavidI'll take it. Better than another four months of radio silence.

Becca HartwellMuch better.

DavidIt also makes me wonder about reshoots. If Cochrane had already filmed any scenes with the cast before she left, does all of that just get scrapped?

Becca HartwellAlmost certainly, yeah. You can't blend two different actresses in the same role, even for background stuff.

DavidSo somewhere there's footage that'll never see daylight.

Becca HartwellProbably. That's the quiet cost of a recast nobody really talks about.

DavidOkay, switching gears here.

Becca HartwellBecause Ginny wasn't even the only recast headline that day.

DavidRight. We buried the lede a little.

Becca HartwellWe did. There were two more names in that same announcement.

DavidSo Ginny's locked in, but David -- Sorry, I mean Becca. This is where I catch myself.

Becca HartwellYou will not survive this episode.

DavidThe second name on that announcement is Lenny Rush, and he's playing Dobby.

Becca HartwellWait, Lenny Rush? That's a genuinely exciting get.

DavidRight? Variety's report on the casting folded him in with Ginny and Riddle like it was one clean package deal.

Becca HartwellWhich structurally it was. Same day, same press release.

DavidBut here's the actor swap that's actually interesting to me.

Becca HartwellToby Jones.

DavidToby Jones, who was in his mid-30s when he voiced Dobby, and Dobby was fully CGI, top to bottom.

Becca HartwellA grown man's voice coming out of a computer-generated house elf.

DavidAnd now you've got a kid actor actually attached to the role.

Becca HartwellSo the question is obvious: Is Lenny Rush's face going to be on screen at all?

DavidDeadline's exclusive on this didn't say. HBO hasn't confirmed whether Rush's Dobby is CGI, motion capture, or prosthetics.

Becca HartwellNothing?

DavidNothing, which is wild because that decision changes the entire performance.

Becca HartwellIt does. If it's mo-cap, you get his actual physicality driving the character.

DavidIf it's prosthetics, you get his face, his eyes reacting in real time.

Becca HartwellAnd if it's straight CGI, like the films-

DavidThen casting an actual kid barely matters beyond the voice booth.

Becca HartwellWhich feels like a waste of Lenny Rush, honestly. He's got a face that does half the acting for him.

DavidI'd take practical over CGI here every time. Give me a real elf on set reacting to real light.

Becca HartwellI'm not so sure. The films leaned CGI because Dobby does things a human body can't do, the ears, the dissiprating, snapping his fingers and vanishing.

DavidSure, but Andy Serkis basically proved mo-cap can carry all of that and still feel human.

Becca HartwellGollum wasn't hopping around a kitchen serving butterbeer, though.

DavidFair. Different physical demands entirely.

Becca HartwellThink about the actual demands of the role. Dobby has to iron his own ears at one point and slam his head in a door as punishment. That's brutal slapstick.

DavidWhich a prosthetic suit could probably sell fine, honestly. Puppetry and practical effects handled way weirder body stuff long before CGI got good.

Becca HartwellSure, but Dobby's proportions are so exaggerated, the huge eyes, the tiny body. Get that wrong practically and it reads as a costume instead of a character.

DavidWhereas CGI just adjusts the proportions digitally, no compromise required.

Becca HartwellRight. That's genuinely the trade-off, precision versus presence.

DavidI'll take presence. Give me an actor a scene partner can actually react to on the day.

Becca HartwellI hear you. I just don't think it's as simple as practical good, CGI bad here.

DavidMaybe it comes down to how much they trust a kid actor to carry a scene without the safety net of a suit or a render.

Becca HartwellSo we're stuck. No confirmation, no format, just a name.

DavidWhich is honestly fine. It's one to watch, not one to solve tonight.

Becca HartwellAgreed. Put a pin in Dobby.

DavidBecause the last name on that same announcement is the one that actually flips the whole conversation.

Becca HartwellOh, here we go.

DavidYeah, Billy Barratt. Billy Barratt, Tom Riddle.

Becca HartwellThe kid version, who ends up casting a shadow over everything else this season.

DavidVariety broke it clean. Barratt's playing young Tom Riddle in Chamber of Secrets.

Becca Hartwell16-year-old prefect, diary and all.

DavidWhich is the whole point. Deadline's got him in his high teens, and Christian Coulson was 23 when he got cast in the film.

Becca HartwellThat's not nothing. Seven-plus years is a different face, a different voice, a different everything.

DavidYounger Riddle reads more like a kid who fooled everybody. Older Riddle reads like a kid who already knew he'd fool everybody.

Becca HartwellSame guy, worse intentions either way.

DavidAnd it changes how the reveal lands. A 16-year-old prefect getting away with murder is scarier than a 23-year-old doing it.

Becca HartwellBecause a 16-year-old shouldn't be that good at lying yet.

DavidExactly, and he already is.

Becca HartwellOkay, so walk me through the actual arc, because I always forget how much of this is just a book talking.

DavidCollider frames the whole thing around the diary. Riddle's a memory trapped in a book working Ginny from the inside, and before Barratt, that role belonged to three actors, Coulson, Hero Fiennes Tiffin, and Frank Dillane.

Becca HartwellThree, and somehow none of them are the version everybody actually pictures.

DavidBecause none of them are actually Voldemort, not yet.

Becca HartwellRight. Flashback stuff, memory stuff, never the real thing.

DavidThe film split the guy across three phases and never once cast the adult.

Becca HartwellEvery version before him got backup, a grown Voldemort somewhere in the same movie doing the heavy lifting.

DavidHere, he's on his own for the whole season.

Becca HartwellWhich is wild when you think about how central he is to eight movies.

DavidWhich is the part that got me. Barratt is the first actor this show has ever cast as any version of the Dark Lord.

Becca HartwellSay that again?

DavidFirst one ever in this whole adaptation.

Becca HartwellNot a stand-in, not a voice actor for one scene.

DavidThe actual first casting.

Becca HartwellOkay, so who is this kid? Because the name wasn't ringing bells for me.

DavidIt should. His Wikipedia page says he won an International Emmy for Responsible Child, making him the youngest actor ever to win one, and he just landed Nathan Prescott in the Life is Strange series months before this.

Becca HartwellFor a role about a kid living through something brutal, no less.

DavidResponsible Child, yeah. Real heavy drama, not some franchise warmup.

Becca HartwellWait, youngest ever? Full stop?

DavidFull stop.

Becca HartwellAnd then straight into a second big streaming role right after?

DavidTwo swings, both landed, both right before HBO calls.

Becca HartwellThis isn't a kid they found on a random tape.

DavidNo chance. Somebody at HBO watched Responsible Child and started making calls.

Becca HartwellAnd he's carrying a diary arc mostly by himself, no scene partner half the time.

DavidWhich shows you they trust him to hold a room alone, not just react to somebody else's big moment.

Becca HartwellThat's a different kind of casting bet than Dobby or Ginny, honestly.

DavidCompletely different. Those two are reacting to a story happening around them.

Becca HartwellRiddle's writing the story.

DavidLiterally. He's the pen.

Becca HartwellSure. Go with that.

DavidAnd then get this, if Riddle's finally cast, there's a much bigger question sitting right behind him.

Becca HartwellThe grown one, the one wearing the face everybody actually thinks of when you say Voldemort.

DavidNobody's announced him yet.

Becca HartwellNobody.

DavidOkay, so Riddle's on the board, which means there's one name still missing from this whole puzzle.

Becca HartwellThe grown one, Voldemort himself, wherever he shows up down the line.

DavidRight. Nose and all.

Becca HartwellNose and all.

DavidAnd listeners are already speculating way past Riddle. There's a YouTube video going around titled Eva Green as Bellatrix, and the comments are full of people treating it like it's basically confirmed.

Becca HartwellIs it confirmed?

DavidNo, it's a rumor video. Nobody official has said a word.

Becca HartwellBut it's telling, right? The second one casting drops, fans start building the whole cast list in their heads.

DavidExactly. Bellatrix isn't even in this book. People are just hungry.

Becca HartwellAnd it's not the only thing floating around before this announcement even landed. There's a post from a fan account, The Daily Potter, that went up saying Chamber of Secrets casting was expected that day, and it specifically named Moaning Myrtle as one of the unannounced roles.

DavidSo they basically called the day right.

Becca HartwellCalled the day, missed the names. Nobody had Riddle, Dobby, or the new Ginny actress in their post.

DavidWhich tells you the leak network around the show is decent, but not that decent.

Becca HartwellRight. Somebody knew news was coming. Nobody knew what it actually was.

DavidSo back to the big one: adult Voldemort.

Becca HartwellThe role everyone actually cares about.

DavidDo you think they cast him this season or do they hold him back?

Becca HartwellI think they hold him back. You don't reveal your main villain's adult face the same year you just introduced the teenage version.

DavidI disagree a little. I think they want him locked in early so the marketing has something to build toward.

Becca HartwellCould be both. Cast quietly, announce loud.

DavidCan I float a wishlist name? Purely speculative, no source behind it.

Becca HartwellPlease, go for it.

DavidSomeone who can do quiet menace without leaning on prosthetics the whole time. I keep thinking about actors who've done stage villains, someone who can hold a room with just a voice.

Becca HartwellSee, that's exactly the stage-trained instinct I keep coming back to too. The nose and the robes are gonna do a lot of the visual work already, so the performance underneath needs to carry the rest.

DavidRight. You don't want someone who just disappears under the makeup.

Becca HartwellAnd there's a version of this where they cast someone completely unexpected, the way Barratt was to us today.

DavidThat's fair. We didn't have Barratt on any lists before this week either.

Becca HartwellExactly. So maybe the honest answer is we genuinely don't know, and pretending otherwise is just us having fun with speculation.

DavidWhich is allowed. That's the whole show.

Becca HartwellTrue enough.

DavidOkay, one more totally unfounded guess purely for fun. What if they don't even announce him as a single casting? What if he shows up first in a teaser with no name attached at all?

Becca HartwellOoh, a silent reveal. Let the fans figure out who it is before HBO confirms it?

DavidThat would be so on brand for how cagey this whole production's been.

Becca HartwellIt really would.

DavidOoh, a stealth casting. I like that.

Becca HartwellWouldn't put it past them at this point.

DavidNo, honestly, nothing about this casting cycle has been predictable.

Becca HartwellWhich is kind of the fun of covering it.

DavidSo that's our open question heading into next week. Who plays the version of him with the nose?

Becca HartwellAnd whether HBO drops it quiet or loud.

DavidWe'll be watching either way, but that's the thread for next week.

Becca HartwellFor now, let's close this one out.

DavidOkay, prediction time. Adult Voldemort, who's Becca putting money on?

Becca HartwellI want someone who's done stage work, full-on chew the scenery theater training. That voice has to carry a whole movie without a face doing half the work.

DavidSo basically anyone who's played a Bond villain.

Becca HartwellSure. Throw a dart at that list.

DavidMy money's on a total curveball, somebody nobody's floated in a single comment section.

Becca HartwellBold.

DavidI like being wrong in public. It's kinda my brand.

Becca HartwellNoted.

DavidAll right. If you've got set photos, a casting whisper, a chapter detail we glossed over, send it our way.

Becca HartwellFind us at TheSortingRoom on socials. Tag us @thesortingroom. We read every single one.

DavidSeriously, every one.

Becca HartwellThis is Becca.

DavidAnd David.

Becca HartwellThanks for hanging out with us this week.

DavidSee you next time.

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